I have a Samsung DLP HLT6176SX/XAA model and the 1st and third light are blinking and the tv turns off by itself. I tryt to turn it on and then after seconds, it turns off again. I think this may be related to a fan not cooling correctly? Is this the problem, what can I do to fix this, do i need to replace the fan, can you help with part and directions on fixing this?
Thanks

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In order to fix this problem the back cover has to be removed and some voltage test on the power supply and interface board need to be tested. You need a multimeter to make these basic tests, you can get one from radio shack. With this meter we can see which circuit board is at fault here. Once we locate which board is causing this problem you can either have it fixed from a repair shop or replace it with a new one.

SAFETY FIRST:its best to get someone who technically proficient to do these test.

If you decide to do these tests yourself keep in mind the high AC voltages you will be exposed too. These AC voltages are dangerous and very harmful if failure to respect certain testing disciplines. Remember this is a TV.

Manual says you need to replace the lamp:
When do I need to replace it?
• It should be replaced when the screen becomes darker, less clear or when all three LEDs on the front (STAND BY/TEMP, LAMP, and
TIMER) are flashing
imgadgetman

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I have a Samsung DLP HLN617WX/XAA. After turning off by itself, the three indicator lights were blinking... signifying a defective lamp. I've re-seated the old lamp several times with no change. I bought a new lamp and reset the lamp hours through the "service menu" with no change. My television is still turning itself off and still blinking the same indicator lights. What should I look at, next?